Klongpy

Some important bug fixes and simplified the internals for groupby.

Most notably, KlongPy can now call into python code that uses multiprocessing.
 
[fix async for remote connections · briangu/klongpy8ef2186 (github.com)](https://github.com/briangu/klongpy/commit/8ef2186a420d4aa4f643692913f49cb6e4b9f306)
[fix multiprocessing for dynamic modules · briangu/klongpy794a5d1 (github.com)](https://github.com/briangu/klongpy/commit/794a5d1a276def4ac849e4fe6a832a2ba73b695c)
[simplify the groupby · briangu/klongpy4c73131 (github.com)](https://github.com/briangu/klongpy/commit/4c73131c4ce1186b3388959feecf4164131adb06)

fixed negate which was creating a NumPy object array when negating an array - should be the base type in the array.
[vectorize black-scholes model · briangu/klongpy989dcc0 (github.com)](https://github.com/briangu/klongpy/commit/989dcc016282db83fc8e53490beb4cded639b2e2)

fixed format2 and form broadcasting bugs.
some minor dyad perf optimizations
fixed kgpy printing of strings, particularly annoying when embedded in arrays and you couldn't tell if an element was a string or integer.

added some initial examples for docker / k8s deploy

refactored library kg files from examples.
lib files now are included in the package deployment so that help and other libraries are "batteries included".

in kgpy help is now accessible via ]h

$> ]h
[shows all help]
$> ]h <topic or symbol>

Fixed IPC issue where KGLambda references were not properly passed back to IPC clients.

The database example now works:

$ cd examples/db

start the web server:

$ kgpy -s 8888 server.kg

and on a client REPL (separate terminal):

$ kgpy
?> c::.cli(8888)
?> upd::c(:upd)
?> db::c(:db)
?> upd([1691111164807793000 100 10000])
?> db("select * from prices")

kgpy (REPL) fixes

fixed bug in collecting IPC client host information.